Miembros de
Boletines de Vulnerabilidades |
Aumento de privilegios en PPP |
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Clasificación de la vulnerabilidad |
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| Propiedad | Valor |
| Nivel de Confianza | Oficial |
| Impacto | Aumento de privilegios |
| Dificultad | Experto |
| Requerimientos del atacante | Acceso remoto con cuenta |
Información sobre el sistema |
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| Propiedad | Valor |
| Fabricante afectado | GNU/Linux |
| Software afectado |
ppp <= 2.4.4 shadow |
Descripción |
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Se ha descubierto una vulnerabilidad en ppp 2.4.4 y anteriores. La vulnerabilidad reside en un error en el plugin winbind para pppd que no comprueba correctamente el código de respuesta de la llamada de sistema setuid. Un atacante local podría elevar privilegios haciendo que setuid falle lo que impediría que "winbind NTLM authentication helper" bajara el nivel de privilegios. |
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Solución |
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Actualización de software Debian Debian Linux 3.1 Source http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1.dsc http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1.diff.gz http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3.orig.tar.gz Architecture independent http://security.debian.org/pool/updates/main/p/ppp/ppp-dev_2.4.3-20050321+2sarge1_all.deb Alpha http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_alpha.deb AMD64 http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_amd64.deb ARM http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_arm.deb Intel IA-32 http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_i386.deb Intel IA-64 http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_ia64.deb HP Precision http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_hppa.deb Motorola 680x0 http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_m68k.deb Big endian MIPS http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_mips.deb Little endian MIPS http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_mipsel.deb PowerPC http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_powerpc.deb IBM S/390 http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_s390.deb Sun Sparc http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_sparc.deb Debian (Shadow) Debian Linux 3.1 Source http://security.debian.org/pool/updates/main/s/shadow/shadow_4.0.3-31sarge8.dsc http://security.debian.org/pool/updates/main/s/shadow/shadow_4.0.3-31sarge8.diff.gz http://security.debian.org/pool/updates/main/s/shadow/shadow_4.0.3.orig.tar.gz Alpha http://security.debian.org/pool/updates/main/s/shadow/login_4.0.3-31sarge8_alpha.deb http://security.debian.org/pool/updates/main/s/shadow/passwd_4.0.3-31sarge8_alpha.deb AMD64 http://security.debian.org/pool/updates/main/s/shadow/login_4.0.3-31sarge8_amd64.deb http://security.debian.org/pool/updates/main/s/shadow/passwd_4.0.3-31sarge8_amd64.deb ARM http://security.debian.org/pool/updates/main/s/shadow/login_4.0.3-31sarge8_arm.deb http://security.debian.org/pool/updates/main/s/shadow/passwd_4.0.3-31sarge8_arm.deb Intel IA-32 http://security.debian.org/pool/updates/main/s/shadow/login_4.0.3-31sarge8_i386.deb http://security.debian.org/pool/updates/main/s/shadow/passwd_4.0.3-31sarge8_i386.deb Intel IA-64 http://security.debian.org/pool/updates/main/s/shadow/login_4.0.3-31sarge8_ia64.deb http://security.debian.org/pool/updates/main/s/shadow/passwd_4.0.3-31sarge8_ia64.deb HP Precision http://security.debian.org/pool/updates/main/s/shadow/login_4.0.3-31sarge8_hppa.deb http://security.debian.org/pool/updates/main/s/shadow/passwd_4.0.3-31sarge8_hppa.deb Motorola 680x0 http://security.debian.org/pool/updates/main/s/shadow/login_4.0.3-31sarge8_m68k.deb http://security.debian.org/pool/updates/main/s/shadow/passwd_4.0.3-31sarge8_m68k.deb Big endian MIPS http://security.debian.org/pool/updates/main/s/shadow/login_4.0.3-31sarge8_mips.deb http://security.debian.org/pool/updates/main/s/shadow/passwd_4.0.3-31sarge8_mips.deb Little endian MIPS http://security.debian.org/pool/updates/main/s/shadow/login_4.0.3-31sarge8_mipsel.deb http://security.debian.org/pool/updates/main/s/shadow/passwd_4.0.3-31sarge8_mipsel.deb PowerPC http://security.debian.org/pool/updates/main/s/shadow/login_4.0.3-31sarge8_powerpc.deb http://security.debian.org/pool/updates/main/s/shadow/passwd_4.0.3-31sarge8_powerpc.deb IBM S/390 http://security.debian.org/pool/updates/main/s/shadow/login_4.0.3-31sarge8_s390.deb http://security.debian.org/pool/updates/main/s/shadow/passwd_4.0.3-31sarge8_s390.deb Sun Sparc http://security.debian.org/pool/updates/main/s/shadow/login_4.0.3-31sarge8_sparc.deb http://security.debian.org/pool/updates/main/s/shadow/passwd_4.0.3-31sarge8_sparc.deb Mandriva Mandrivalinux 2006 X86 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/ppp-2.4.3-9.1.20060mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/ppp-devel-2.4.3-9.1.20060mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/ppp-dhcp-2.4.3-9.1.20060mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/ppp-pppoatm-2.4.3-9.1.20060mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/ppp-pppoe-2.4.3-9.1.20060mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/ppp-prompt-2.4.3-9.1.20060mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/ppp-radius-2.4.3-9.1.20060mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/SRPMS/ppp-2.4.3-9.1.20060mdk.src.rpm X86_64 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/ppp-2.4.3-9.1.20060mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/ppp-devel-2.4.3-9.1.20060mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/ppp-dhcp-2.4.3-9.1.20060mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/ppp-pppoatm-2.4.3-9.1.20060mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/ppp-pppoe-2.4.3-9.1.20060mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/ppp-prompt-2.4.3-9.1.20060mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/ppp-radius-2.4.3-9.1.20060mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/SRPMS/ppp-2.4.3-9.1.20060mdk.src.rpm |
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Identificadores estándar |
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| Propiedad | Valor |
| CVE | CVE-2006-2194 |
| BID | 18849 |
Recursos adicionales |
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Debian Security Advisory (DSA 1106-1) http://lists.debian.org/debian-security-announce/debian-security-announce-2006/msg00193.html Debian Security Advisory (DSA 1150-1) http://lists.debian.org/debian-security-announce/debian-security-announce-2006/msg00239.html Mandriva Security Advisory (MDKSA-2006:119) http://www.mandriva.com/security/advisories?name=MDKSA-2006:119 |
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Histórico de versiones |
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| Versión | Comentario | Fecha |
| 1.0 | Aviso emitido | 2006-07-10 |
| 1.1 | Aviso emitido por Mandriva (MDKSA-2006:119) | 2006-07-11 |
| 1.2 | Aviso emitido por Debian (DSA 1150-1) | 2006-08-14 |